fix export queue

test/apps/export-queue/src/routes/_error.svelte

@@ -0,0 +1,3 @@
+<h1>{status}</h1>
+
+<p>{error.message}</p>

test/apps/export-queue/src/routes/a-[x].svelte

@@ -0,0 +1,15 @@
+<script context="module">
+	export function preload({ params }) {
+		if (params.x === 'a') {
+			return new Promise(resolve => setTimeout(resolve, 100));
+		}
+
+		return params;
+	}
+</script>
+
+<script>
+	export let x;
+</script>
+
+<a href="b-{x}">b-{x}</a>

test/apps/export-queue/src/routes/b-[x].svelte

@@ -0,0 +1,5 @@
+<script>
+	export let x;
+</script>
+
+<p>b-{x}</p>

test/apps/export-queue/src/routes/index.svelte

@@ -0,0 +1,3 @@
+
+<a href="a-a">1</a>
+<a href="a-b">2</a>